Sim Locked Phones

iPhone Samsung Phone unlocking in Stoke-on-Trent Tunstall Kidsgrove Burslem Cobridge


A Service Provider (SP) lock is used to ensure that your phone will only work on one network; the one that you bought your phone from. If your phone is locked then it will refuse to accept a SIM card from another network. Unlocking is the process of removing the SP Lock so that it’s possible to use other SIM cards in your phone. PhoneBox can unlock almost any handset, including Blackberry and iPhone, in under an hour. In rare cases it may take up to a few days if we need to order special codes from a third party.


Is unlocking illegal?


No, it is a common misconception that unlocking your phone is illegal. In fact quite the opposite, it is your consumer right to have your handset unlocked. The networks have to provide you with an unlock code if you request it – but they normally charge you for the privilege and may insist you pay for all monthly rental in advance for the remainder of your contract.


Is your phone locked?


The simplest way to check if your phone is locked is to insert a SIM card from another network and see if the phone will accept it. If your phone is locked you will often see an error message of some kind. These messages vary depending on your handset manufacturer. Here are some examples:


Nokia = ‘Enter restriction code’ or ‘SIM card rejected’

Motorola = ‘Enter special code’ or ‘Enter Subsidy Code’

Sony Ericsson = ‘Incorrect SIM’ or ‘Enter Correct SIM’

Samsung = ‘Invalid Network SIM…Enter Code’


Why unlock your phone?


1 ) You may own more than one SIM card running on different networks; if you want to swap the SIM cards from time to time your phone must be unlocked.

2 ) You may find your network is not as competitively priced as another and you would then need to use a different SIM card in the phone.

3 ) If you are travelling overseas you may want to use your phone with a SIM card from that country to save yourself money.

4 ) You may be looking to sell your old handset, in which case you will be able to sell it at a higher price and not have to worry if your potential buyer’s SIM card will be accepted by your handset.

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